Wrench.



No. 712586. Patented Nov. 4, |902.

s. J. PETTY.

WRENCH.

'mpplicatipn mea .my s. 1902.,

UNITED STATT-3s STONEWALL Jr PETTY, OF GILLHAM, ARKANSAS.

PATENT FFICE.

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SEECIFICATIGN forming part of Letters latent N o. 712,586, datedNovember 4, 1902. Application filed July 3,1902. Serial llo. 114,267.(No model.)

To @ZZ whom it nul/,y concern:

Beit known that I, STONEWALL J. PETTY, a

'citizen of the United States of America, residing at Gillham, in thecounty of 'Sevier and State of Arkansas, have invented certain new anduseful Improvements in Wrenches, of which the following is aspecification. i

This invention relates to nut and pipe wrenches, and particularly tothat class of wrenches known as sliding jaw.

The object of the invention is, first, the construction of a wrenchwhereby the adjustment of the movable or outer jaw is had byspring-operated means situated in the handle of the wrench; second,whereby the said adjustment of the movable jaw by the ,springoperatedmeans is controlled by the inner j aw of the wrench, which is stationarywithrelation to the adjustment, `but so pivoted as to frictionallycounteract the action of the spr ng on the movable jaw;

A further object 0f the invention is to pro-` duce a wrench whereintheseveral parts may be easily assembled and when so' assembled willpossess sufficient strength for the purpose intended. v

A still further object of the invention is to produce a wrench inwhichtheseveral parts willpossess advantagesin points of simplicity,durability, and inexpensive structure.

With the above and other objects in View the invention consists -in thedetails of construction and in the arrangement and combination of parts,to be hereinafter more fully set forth and claimed.`

In describing the invention reference will be had to the accompanyingdrawings, forming part of this specification, and wherein likecharacters denote corresponding parts in` the several views, in whichyFigure 1 is a side view of a wrench embodying the invention. Fig. 2 is asection showing the adjusting means.

In the drawings, l indicates the forward end of the handle of thewrench, said forward end being hollow, so as to receive the primary stem2 of the outerjaw 8, and has the ears 10 and 11 cast therewith. Integralwith the forward end of the handle is `cast the rear tubularhandle 4.Said rear handle 4 is considerably smaller than the forward handle, so`as to allow a grip 5 of sulicient stoutness to be slid thereon andsecured in place bythe screw 6, and thereby completing the uniform shapeof the wrench. Between the forward and rear portions of the handle thereis provided a iiange 7 for a purpose to be hereinafter described.

The outer jaw 3 is provided with the primary stem 2 and a secondary stem8, said secondary stem being cast integral with the primary stem andwhen in `place extending into the tubular portion of the handle. On theouter end of the secondary stem is secured the thumb-nut 9. A spiralspring 15 is secured around the secondary stem, said spring abutting theange 7 and the thumb-nut 9.

The inner jaw 12 is pivoted to the ears lO by means of the shaft 13; Theside 14 of the inner jaw lwhich is adjacentto the primary stem isinclined, sothat it only contacts with the primary stem at its inneredge. A springtongue 18is journaled to the ears 11 by the shaft l16. Oneend of said tongue is embedded in the inner jaw 12, and the other end isheld normally elevated by means of the spring 17and the inner jaw thusheld in frictional contactwith the" primary stem `for the purposehereinbefore described.

If'it is desired to adjust the wrench, it is only necessary to depressthe spring-tongue 15 at its elevated end, thereby removing thefrictional contact between'the primary stem and the inner jaw, pull outthe movable jaw a distancegreater than the size of the object it isdesired to operate upon, release the springtongue,` and place the jawsof the wrench so that the stock will fall between them. Again depressthe tongue, and the movable jaw will adjust itself precisely as desiredby reason of the expansion of the spring l5. p

Itwill be noted that various changes in the proportions and constructionmay be resorted to without departing from the scope ofthe invention. l

Having` thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In a wrench, a movable jaw, ahandle, means within the handle forholding `the movable jaw normally closed and a pivoted jaw forming meansfor maintaining the movable jaw at a desired adjustment.

2. In a Wrench, a movable jaw, a handle,

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means within the handle for spring-actuating the jaw-bar, a pivoted jawand springactuated means acting on the pivoted jaw, whereby frictionalcontact is had between said pivoted jaw and the jaw-bar of the movablejaw.

3. In a wrench, a movable jaw, a handle, means within the handle forspring-actuating lthe jaw-bar, a pivoted jaw journaled in ears on thehandle, one side of which frictionally engages the jaw-bar and means fornormally holding the pivoted jaw in frictional engagement with thejaw-bar.

4. In a wrench, a movable jaw, a handle, means Within the handle forspring-actuating the jaw-bar, a pivoted jaw and springactuated means formaintaining the pivoted jaw in frictional contact with the jaw-bar, saidmeans consisting of a pivoted tongue having one endembedded in thepivoted jaw and the other held normally elevated by a spring,substantially as described.

5. In a wrench, a movable jaw, a handle, means within the handle forspring-actuating the jaw-bar, a pivoted jaw journaied in ears on thehandle, the pivot of said jaw being situated at a point below the centerwhereby the force of operating the wrench will be simultaneouslyutilized 'to increase the frictional contact between the pivoted jaw andthe j aw-bar.

In testimony whereof I affix my signature, in the presence of twowitnesses, this 30th day of June, 1902.

STONEWALL J. PETTY.

Witnesses:

BENJAMIN E. HENDRIX, JOHN S. HENDRIoKs.

